One mile South, one mile West, one mile North

July 22nd, 2014

This is another puzzle I found to be an interesting variation from the original that I have heard previously.

Basic puzzle: how many places are there on Earth (if any) that you can you walk one mile South, one mile West and one mile North and be back in your original position.

Answer A: 1 — right at the North pole, so you form a geodesic triangle.

“True” answer B: infinitely many – one mile above the the slice of earth that is one mile in circumference.

Scale is all wrong yada yada but the visual concept should be clear enough (I hope, and such is the intent).

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